Pressure-regulator



A. A. PINDSTOFTE. PRESSURE REGULATOR.

APPLICATION FILED AUG.281 |919. 1,383,481. Patented July 5, 1921.

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PATENT oFFlcE.

.ANDERS ANDER/SEN PINDSTOFTE, 0F COENHAGEN, DENMARK.

PRESSUltE-RJEGJTLATOR.

Specification of Letters Patent.

atented July 5, 1921.

Application filed 'iugnst 28, 1919. Serial No. 320,525.

T 0 all ywit-om t may concor-n Be it known that I, ANDERS fiNorRsnN PiNDsrorrn, manufacturer of engines, a subject of the Kingdom oi Denmark, residing` at No. 62 Frederiksberg Alle, in the city ot' Copenhagen, Denmark, have invented certain new and useful improvements in Pressure-Regulators7 of which the following is a specication.

The present invention relates to a pressure regulator suitable t'or gases as well as for liquids, the invention being mainly characterized in that the diaphragm is not in Y firm connection with those parts in the pressure regulator `which are actuated by or artuate the diaphragm, while the valve is operating. The invention is Jiurther characterized in that the guiding parts located above and below the inlet opening, respectively, in the valve arenot in lirm connection with each other. v l

On the drawing there is illustrated one manner ot' constructing the invention.

Figures 1 and 2 show two vertical sections of the pressure regulator, at right angles to each other.

Fig. 3 shows the saine in top view, and

Fig. d a horizontal sect-ion alongY the line A-B in Fig. 2.

In the construction shown, the valve chamber 1 is limited by a cylindrical wall 2 held tightly between a cover Band a bottom part l. A' tube 5 extends through the cylinder wall 2, and is fitted with a downwardly directed inlet opening 6. he highly compressed gas or liquid, whose pressure is to be reduced by the regulator, flows now into the valve chamber 1. immediately below the inlet opening 6, there is provided a valve seat 7 or the like. inserted in the top tace oit the plunger member 8, which is disposed below the inlet opening and consists ot a guiding head or disk 10 and a downwardly direc-ted stem 9. The lower portion ot the stem 9 is reduced in dia-meter, and is encircled by a helical spring 11 tending to press the valve seat 7 against the inlet opening 6. The closing pressure of the sprine' may be varied by screwing up or down, relatively to the bottom plate 4, the ring 12 which guides the stem, The ring 12 as well as Vthe head 10, are fitted with the necessary relatively to the head and are located rather tar trom the valve seat 7, the upper ends ot' the said studs resting against a guiding disk 14, which rests loosely above the inlet tube 5. its edge being guided against the cylinder wall 2. The device may also be constructed in the manner indicated in Fig. 27 where the studs 13 are screwed into the guiding disk lil, their lower ends resting against the guiding flange 10. Between the guiding disk 14 and the diaphragm 15, there is prol vided another loose guiding disk 1G, which is also guided against the cylinder wall, and is fitted with a centrally disposed and downwardly directed pin or screw 1T, rounded at its lower end and rest-ing on the disk 14. rlhe outer portion of the top tace ot the disk 16 is thinned, so that thereis thereby produced an open annular space along the outer portion of the diaphragm.

The diaphragm l5 is disposed on top oit the disk 16, and is held tightly between the cylinder wall 2 and the too portion 3 ot the pressure regulator. Above the diaphragm there is provided a loading plunger compris ing` a head or disk 19 and a stem 1S. The head 19, as well as the stem 18, are lguided in the top part of the regulator. rlhe upper lrounded end of the stem 1S supports a disk 2O receiving;- the pressure ot the loading spring 21. The pressure ot the spring may be varied by the screw 22 being screwed more or less down.

By constructing the pressure regulator as here described, the great advantage is attained that the diaphragm lies loose between the loading plunger 19 and the guiding disk 16, so that the diaphragm will be far less strained than corresponding diaphragm fastened to a continuous spindle` and so that the friction is reduced vto a minimum owingto the devices above and below the inlet opening and to the loose disks. By means of the studs 13, there is Jfurther provided free escape in all directions 'for the highpressure fluid or. gas supplied. i

l claim as my inventionln apressure regulator,tlie combination of a spring-loaded plunger; a casing wherein the plunger is guided; a disk loosely mounted in the casing; a diaphragm mounted in said casing between said plunger and disk and free of positive connection with both of them, the upper surface ot the diaphragm loosely contacting with the head ot the plunger; a second disk loosely mounted in said casing beneath the first-named disk, one of` provided With adjustable, verticallvproject- 10 said disks having a central vertical bearing ing members engaging the other part t0 member With which the other disk is enregulate the distance between the two parts; gaged; a second spring-loaded plungerV and an inlet tube for the fluid to be regu- 4guided in the casing below the second disk lated having an open end coperative'with and having its head spaced from the same the valve seat. 15

. and provided with a, Valve Seat; the, head 0f In teStiIIlODy AWhEBIEbO I have t affixed my the second plunger and the second disk con- Signature. stituting companion parts, one of which is ANDERS ANDERSEN PINDSTOFTE. 

